This is the Robinson Racing 40-Tooth Steel Spur Gear and 16-Tooth Steel Clutch Bell set for the Traxxas Revo 2.5 and 3.3 trucks. This gear set will greatly increase the durability of your truck. These are a must for high-performance and racing applications. Your truck will be able to handle a great deal of power without stripping like the stock gear would. This is an excellent value.

FEATURESConstructed of hardened steel for long life, clutch bell is CNC machined